prechlorination


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Noun1.prechlorination - chlorination prior to another chemical process
chlorination - the addition or substitution of chlorine in organic compounds
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Preliming (using aluminium sulphate, [Al.sub.2][(S[O.sub.4]).sub.3]) and prechlorination (using 30 ppm chlorine powder) are performed simultaneously while the raw water is in the reactor clarifier.
KWTP is a common conventional treatment plant including prechlorination, ozonation, coagulation-flocculation, and filtration process units.
Three tenders for the supply of (a) two centrifugal horizontal lifting pumps for the prechlorination injection at Mdi Potable Water Treatment Plant, (b) washers and glands made of different alloys (phosphoric copper bronze alloy & yellow copper) required for Al Fostat Potable Water Treatment Plant, also (c) supply & erection of a submersible deep water pump at the chlorine (warehouse) location at Kilo 74 on Cairo/ Alex.
Different treatment processes like prechlorination, coagulation, filtration and disinfection are used at ABUWTP.
EFFECT OF THE PRECHLORINATION POINT ON THE TRIHALOMETHANES FORMATION IN CONVENTIONAL WATER TREATMENT PROCESS
Prechlorination (addition of chlorine to the raw source water) is practiced to control algae.